Thermal stability of electro‐optic response in poled polyimide systems

1991 ◽  
Vol 58 (3) ◽  
pp. 225-227 ◽  
Author(s):  
J. W. Wu ◽  
J. F. Valley ◽  
S. Ermer ◽  
E. S. Binkley ◽  
J. T. Kenney ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Electro Optic ◽  
Thermal Stability Of

Hydrogen-bonded network: An effective approach to improve the thermal stability of organic/polymer electro-optic materials

2012 ◽  
Vol 56 (2) ◽  
pp. 169-173 ◽  
Author(s):  
GuoWei Deng ◽  
ShuHui Bo ◽  
TingTing Zhou ◽  
Rong Zhang ◽  
JiaLei Liu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Organic Polymer ◽  
Electro Optic ◽  
Thermal Stability Of ◽  
Hydrogen Bonded

Evaluation of Thermal Stability of Organic Electro-Optic Device by Using Thermally Stimulated Current

2016 ◽  
Vol 16 (4) ◽  
pp. 3378-3382 ◽  
Author(s):  
Ryoma Ikemoto ◽  
Dai Taguchi ◽  
Takaaki Manaka ◽  
Mitsumasa Iwamoto ◽  
Toshiki Yamada ◽  
...  
Keyword(s):  
Activation Energy ◽  
Thermal Stability ◽  
Life Time ◽  
Side Chain ◽  
Dominant Contribution ◽  
Thermally Stimulated Current ◽  
Chain Polymer ◽  
Electro Optic ◽  
Thermal Stability Of ◽  
Host Polymer

Thermally stimulated current (TSC) measurement was employed to study the thermal stability of electro-optic (EO) polymers, i.e., guest/host polymer DR1/PMMA and side-chain polymer PMMA-co-DR1. Here the isothermal relaxation test showed that the relaxation time τ (85 °C) of side-chain polymer PMMA-co-DR1 is longer than that of guest/host polymer DR1/PMMA. TSC peaks appeared symmetrically in proportion to the poling electric field Ep, indicating that DR1 molecules make a dominant contribution to dipolar depolarization. Thermal sampling (TS) method showed that the activation energy of the DR1/PMMA is around 1 eV, while that of the PMMA-co-DR1 is distributed > 1 eV. Results suggested that side-chain polymer is preferable to the guest/host polymer in the thermal stability. TSC measurement is helpful as a conventional method for studying the life time of EO polymers in terms of dipolar motion.

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